Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-entropy rare earth high-temperature thermistor material and preparation method thereof
The invention provides a high-entropy rare earth high-temperature thermistor material and a preparation method thereof. The material is prepared from any five of lanthanum trioxide, neodymium oxide, samarium oxide, europium oxide, gadolinium oxide, dysprosium oxide, holmium oxide, erbium oxide, terbium oxide, ytterbium oxide and lutetium oxide. The high-temperature thermistor material with a bixbyite structure and a monocline structure, a material constant B550 DEG C/1600 DEG C = 17038-23648K, resistivity of 6.56 * 10 < 4 >-2.81 * 10 < 6 > omegacm at 750 DEG C and a sensitivity coefficient of-0.49--0.67% at 1600 DEG C is obtained by mixing, grinding, calcining, cold isostatic pressing, high-temperature sintering and electrode coating and burning. The high-temperature thermistor material with the bixbyite structure and the monoclinic structure is stable in performance and good in consistency. The material has obvious negative temperature coefficient characteristics in a temperature range of 550-1600 DEG C, has ultrahigh linearity, and is expected to be applied to high-precision high-temperature thermistors.
本发明提供一种高熵稀土高温热敏电阻材料及其制备方法，该材料以三氧化二镧、三氧化二钕、三氧化二钐、三氧化二铕、三氧化二钆、三氧化二镝、三氧化二钬、三氧化二铒、三氧化二铽、三氧化二镱、三氧化二镥中任意五种为原料，经混合研磨、煅烧、冷等静压成型、高温烧结、涂烧电极，即得到方铁锰矿结构和单斜结构，材料常数为B550℃/1600℃=17038‑23648K，温度750℃电阻率为6.56×104‑2.81×106Ωcm，以及在温度1600℃敏感系数为‑0.49‑‑0.67%的高温热敏电阻材料。该材料的方铁锰矿结构和单斜结构高温热敏电阻材料性能稳定，一致性好。在温度550℃‑1600℃范围具有明显的负温度系数特性，且具有超高的线性度，有望应用于高精度高温热敏电阻器。
High-entropy rare earth high-temperature thermistor material and preparation method thereof
The invention provides a high-entropy rare earth high-temperature thermistor material and a preparation method thereof. The material is prepared from any five of lanthanum trioxide, neodymium oxide, samarium oxide, europium oxide, gadolinium oxide, dysprosium oxide, holmium oxide, erbium oxide, terbium oxide, ytterbium oxide and lutetium oxide. The high-temperature thermistor material with a bixbyite structure and a monocline structure, a material constant B550 DEG C/1600 DEG C = 17038-23648K, resistivity of 6.56 * 10 < 4 >-2.81 * 10 < 6 > omegacm at 750 DEG C and a sensitivity coefficient of-0.49--0.67% at 1600 DEG C is obtained by mixing, grinding, calcining, cold isostatic pressing, high-temperature sintering and electrode coating and burning. The high-temperature thermistor material with the bixbyite structure and the monoclinic structure is stable in performance and good in consistency. The material has obvious negative temperature coefficient characteristics in a temperature range of 550-1600 DEG C, has ultrahigh linearity, and is expected to be applied to high-precision high-temperature thermistors.
本发明提供一种高熵稀土高温热敏电阻材料及其制备方法，该材料以三氧化二镧、三氧化二钕、三氧化二钐、三氧化二铕、三氧化二钆、三氧化二镝、三氧化二钬、三氧化二铒、三氧化二铽、三氧化二镱、三氧化二镥中任意五种为原料，经混合研磨、煅烧、冷等静压成型、高温烧结、涂烧电极，即得到方铁锰矿结构和单斜结构，材料常数为B550℃/1600℃=17038‑23648K，温度750℃电阻率为6.56×104‑2.81×106Ωcm，以及在温度1600℃敏感系数为‑0.49‑‑0.67%的高温热敏电阻材料。该材料的方铁锰矿结构和单斜结构高温热敏电阻材料性能稳定，一致性好。在温度550℃‑1600℃范围具有明显的负温度系数特性，且具有超高的线性度，有望应用于高精度高温热敏电阻器。
High-entropy rare earth high-temperature thermistor material and preparation method thereof
一种高熵稀土高温热敏电阻材料及其制备方法
ZHANG BO (Autor:in) / WU RUIFENG (Autor:in) / CHANG AIMIN (Autor:in)
29.11.2024
Patent
Elektronische Ressource
Chinesisch
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